//
//  Controller.m
//

#import "Controller.h"

@implementation Controller
@synthesize shape, decreaseButton, increaseButton, numberOfSidesLabel;
- (IBAction)decrease:(id)sender {
    NSLog(@"Decrease");
	[shape setNumberOfSides:shape.numberOfSides-1];
	[self updateInterface];
}

- (IBAction)increase:(id)sender {
    NSLog(@"Increase");
	[shape setNumberOfSides:shape.numberOfSides];
	[self updateInterface];
}

-(void)updateInterface {
	NSLog(@"Past First");
	decreaseButton.enabled = (shape.numberOfSides == shape.minimumNumberOfSides)?NO:YES;
	NSLog(@"Past First");
	increaseButton.enabled = (shape.numberOfSides == shape.maximumNumberOfSides)?YES:NO;
	NSLog(@"Past First");
	numberOfSidesLabel.text = [NSString stringWithFormat: @"%d",shape.numberOfSides];
	NSLog(@"Past First");
}

-(void)awakeFromNib {
	// Initiate the PolygonShape
	[shape init];
	NSLog(@"The Polygon: %@",shape);
}
@end
//
//  Controller.h

#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#import "PolygonShape.h"

@interface Controller : NSObject {
    IBOutlet UIButton *decreaseButton;
    IBOutlet UIButton *increaseButton;
    IBOutlet UILabel *numberOfSidesLabel;
	IBOutlet PolygonShape *shape;
}
@property (retain) IBOutlet UIButton *decreaseButton;
@property (retain) IBOutlet UIButton *increaseButton;
@property (retain) IBOutlet UILabel *numberOfSidesLabel;
@property (retain) IBOutlet PolygonShape *shape;
- (IBAction)decrease:(id)sender;
- (IBAction)increase:(id)sender;
-(void)updateInterface;
@end
//
//  PolygonShape.h

#import <Foundation/Foundation.h>


@interface PolygonShape : NSObject {
	int numberOfSides;
	int maximumNumberOfSides;
	int minimumNumberOfSides;
	NSString *name;
}
@property int numberOfSides;
@property int maximumNumberOfSides;
@property int minimumNumberOfSides;
@property (retain) NSString *name;

-(id)initWithNumberOfSides:(int)sides maximumNumberOfSides:(int)max minimumNumberOfSides:(int)min;
-(id)init;
-(void)makeNumberOfSides:(int)numSides;
-(float)getAngleInDegrees;
-(float)getAngleInRadians;

@end
//
//  PolygonShape.m

#import "PolygonShape.h"


@implementation PolygonShape
@synthesize numberOfSides, maximumNumberOfSides, minimumNumberOfSides, name;

-(void)makeNumberOfSides:(int)numSides {
	if((numSides < maximumNumberOfSides) && (numSides > minimumNumberOfSides)) {
		self.numberOfSides = numSides;
	}
}

-(float)getAngleInDegrees {
	return (180*((self.numberOfSides-2)/2));
}
-(float)getAngleInRadians {
	return ([self getAngleInDegrees] * (M_PI/180));
}

-(id)initWithNumberOfSides:(int)sides maximumNumberOfSides:(int)max minimumNumberOfSides:(int)min {
	self.maximumNumberOfSides = max; self.minimumNumberOfSides = min;
	if(sides < self.minimumNumberOfSides) {
		sides = self.minimumNumberOfSides;
	}
	if(sides > self.maximumNumberOfSides) {
		sides = self.maximumNumberOfSides;
	}
	[self setNumberOfSides:sides];
	return [self autorelease];
}

-(id)init {
	return [self initWithNumberOfSides:5 maximumNumberOfSides:10 minimumNumberOfSides: 3];
}

-(NSString *)description {
	return [NSString stringWithFormat: @"%d sided polygon.",self.numberOfSides];
}

@end